Home / 3,423.13-5,143.35-3,284.74

Finding the Fourth Proportional to 3,423.13, 5,143.35 and 3,284.74

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Solution

The fourth proportional to 3,423.13, 5,143.35 and 3,284.74 is: 4,935.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.13 : 5,143.35 = 3,284.74 : x
  2. Step 2: Convert to fraction form
    3,423.13/5,143.35 = 3,284.74/x
  3. Step 3: Cross multiply
    3,423.13x = 5,143.35 × 3,284.74
  4. Step 4: Simplify right side
    3,423.13x = 16,894,525.34
  5. Step 5: Solve for x
    x = 16,894,525.34/3,423.13
  6. Step 6: Final answer
    x = 4,935.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.